Hydraulic motor-driven air exhauster and compressor.



v s. M. STONE. HYDRAULIC MOTOR DRIVEN AIR EX HAUSTER AND COMPRESSOR. APPLICATION FILED JAN. 26 914.

[1,21 9,1 84. Pathted Mar. 13, 1917.

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STANLEY 1V1. STONE, 01 NEW YORK, Y.

HYDRAULIC MOTOR-DRIVEN AIR EXHAUSTER AND COMPBJESSOR.

Specification of Letters Patent.

Patented Mar. 13,1917,

Application filed anuary 26,1914. Serial No. 814,325.

To all whom it may concern:

it known that I, STANLEY M. STONE, a citizen of the United States, and resident of New York, county of New York, and State of New York, have invented certain new and useful Improvements in Hydraulic Motorlh'iven Air Exhansters and Compressors, of which the following is a specification.

This invention relates to hydraulic motor-driven air exhausters and compressors to be employed for various purposes, especially vacuum cleaning processesfi The invention has for its object to provide an efficient portable, compact, durable, mechani cally simple and inexpensive construction of the character named which may be effectively employed to utilize water power provided under moderate'pressure, as housesupply pressure in any place where running water is installed, whereby the device may be operated by the most inexpensive and readily obtainable motive force. Further objects are to provide a device of such novel construction to obviate the necessity of using either stuflingboxes for ournaling its reciprocating piston-rod or bed-plates 'for supporting its cylinders.

The invention embodies, in compact arrangement, cylinders, a piston and rod, novel means for journaling said rod, air chambers, a dust screen, a spring-controlled trigger device and feed valve as hereinafter fully described and specifically set forth in the annexed claims.

In the accompanying drawings forming part of this specification Figure 1, is a front end elevation illustrating my invention; Fig. 2, a vertical sectional elevation taken on the line 2+2, of Fig. 1; and Fig. 3, is a vertical section of a detail ofthe invention, taken on the line 3 3, of Fig. 2. I

In carrying out 'my invention I employ a cast metal casing A, embodying the air-rcceiving cylinder 1, the water-receiving cylinder 2, the air-admission chamber 3 and the valvecylinder 4t. Said casing'is closed at its rear end by means of the head 5, and at its front end by the heads 6 and 7, the said heads being respectively held in place by suitable screws, as a, a, whereby they are readily removable.

lVithin the cylinder 4, is located a reciprocating valve B, which is provided with a rod 7), and is of the hollow cylinder type, having closed ends, a lateral water-inlet opening 8, and oppositely located wateroutlet ports 9 and 10, which alternately register with channels 11 and 12, for supplying water to the cylinder 2. The channels 11 and 12, lead downwardly from the cylinder 2,and extend on a. central vertical line from said cylinder throughthe casing A, whereby they are alternately used as supply and exhaust channels for the water employed in the operation of the device.

Operating within the cylinder 1, is a reciprocating piston C having an integrally formed forwardly extended stud 0, which is in secure connection with a tubular pistonrod (Z, forming part of a piston D, which reciprocates within the cylinder 2. Journa-led through and slidably engaging the outer part of the piston D, is a rod E, having a head 6, which reciprocates within the piston-rod (Z, and a sleeve 13, for frictional engagement with the face of the piston D, during the operation of the device, as will be hereinafter described.

The forward end of the rod E, is journaled through the head 7; and said head is provided with a circular recess 14, containing an absorbent washer 15, composed of felt or analogous material. In order that any leakage around the rod E, through the inner face of said head 7, may readily be discharged, a channel 16, leads downwardly from said recess 14, and empties through a wide opening leading into the channel 11. A similar bearing and waste water-discharging arrangement is provided for journaling the piston rod (Z, at the inner end of the cylinder 2. This bearing embodies a head F, which is shrunk, pressed or otherwise securely fixed into said cylinder 2, and is provided with a circular recess f, containing an absorbent washer 17, said recess having an outlet 18, which communicates with a channo]. 19, which leads into the water-exhaust outlet 12. By this means of journaling the reciprocating rods and readily discharging leakage I obviate all liability of having water forced through the face of the head 7 or into the cylinder 1, and also the necessity of employing expensive stufiing boxes, whereby I not only greatly reduce the cost of construction and maintenance of the device, but also provide for very e' ficient operation, as friction caused by the ordinary stuiiing-box packing is eliminated and the de ice requires no attention other than that incident to necessary oiling and cleaning.

loo

In pivotal en agement with, (by means ofa spindle G) and located between bearings 20, which extend from the face of the head 7, and are fixed to said spindle, is an oscillating rocking leverill, of novel construction and having a bif rcated lower end part 21, which is in pivotal engagement with the free end of the valve-rod Z); said oscillating rod also having a laterally extended and. channeled upper end part embodying a guide-way Pivotally connected to lateral extensions 23, of the connecting-rod H, by means of screws 24-, is a spring-influenced trigger-device I, comprismg aws z, *2. provided with a widened. or hub-part 525, having a slot 26, which engages the spindle G, and an a awardly extended arm '27; and they are maintained in normally closed parallel relative position by means of spiral springs J, which are coiled around the respective end parts of the spindle G and are held in place by means of the thumb-nutsj. The arms 27, swing within the guide-way 22, during the operation of oscillating the trigger device, whereby lateral movement thereof is prevented and stability and positive action is maintained.

As a means for swinging the trigger device I, a cam-like knob K, is fixed to the free end of the rod E. This knob is of double cone-shaped'contour and its sides on and n, are alternately employed for opening the jaws 27 and oscillating the triggerdevice, as will be hereinafter described.

Air is drawn into the device by means of the bular air inlet channel L, and the incom air is screened by means of a fabric ba which is secured within the mouth of the air-admission chamber 3, by means of a resilient clamping-wire 28, whereby said bag may be readily removed and renewed.

Water is supplied to the device through the tubular inlet R, which leads laterally through the casing A, into the valve-cylinder 4.

As a means for ingress and egress of air to and from the air-cylinder 1, normally closed spring-infiuenced valves N, O, P and Q, are employed, the valves P and Q, being protected by means of perforated caps 29 and 30.

In the operation and use of the invention running water from a house-supply faucet or other source of water-supply, communicating -with a water -main, is introduced These jaws are respectiuely sleeve 18, which is fixed thereon; said rod E,

then is caused to move forwardly for the balance of. the stroke and the czrnrfacc m of a the knob K, is forced through the jaws 2', 27. At the beginning of the return stroke the cam-face n, of the knob K, swings the'trigger-device in the opposite direction, :thus bringing the valve B and the port 9, into position for supplying water to the;forward endbf the cylinder 2, the operation being repeated continuously until the water supply is shut off. During the forward stroke of the piston 0, air is drawn from the chamber 3, through the valve 0, and exhausted through the valve Q, and during the; backward stroke air is drawn from said chamber through the valve N, and exhausted through the valve P, thus providing for a continuous flow of air from the chamber 3,; to the cylinder 1, and causing a continuous exhaust of air from any source of supply connected with said air chamber 3.

It is especially notable that the above described means for operating valve B, admits of the piston C, traveling the full length of its stroke before said valve is moved and the movement of said valve, in either direction, is instantaneous when the piston reaches the end of its stroke, whereby said piston is not retarded in a manner common to the ordinary slow-moving valve.

I do not confine myself to the specific construction and form of parts as herein shown and described, as I believe that under the scope of my invention I am entitled to mechanical variations which may be employed without departing from the spirit of my invention; Neither do I confine myself to the use of water as a motive force as other media may be employed.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In an air-exhauster havlng a watercylinder and air-cylinder, adjacent one another and having a single Wall between them said wall serving asa common head 7 for the adjoining cylinders, said cylinders having inlets and outlets, pistons operable within said cylinders, a hollow piston rod connecting the pistons, a bearing in the piston of the water cylinder and a rod slidably extended therethrough and having its end slidably held in the chamber of the hollow piston rod, and having its opposite end extending through the outer head of the water cylinder, and being seated in a bearing in said head, and having on its outer end a double cone shaped head, and valve connections for the cylinder inlets and outlets, and a reciprocating feed-valve communicating with said water-cylinder, motive fiuid connections and means operated by the movement of said pistons for, actuating said feed-valve, and an air-chamber with passages for the air communicating with the air-cylinder, for exhausting the air from the chamber into the air-cylinder; the combination of an inlet passage in each of the heads of the air-cylinder, and each having a spring controlled air-valve seated therein, and an outlet passage in each of the heads of the air-cylinder and each having a spring controlled air-valve seated therein, whereby the piston of the ail-cylinder will alternately exhaust the air from the cylinder through the outlets in the opposite cylinder heads, and simultaneously draw the air into the cylinder through the inlet in the opposite cylinder head with each stroke of said piston, substantially as shown and described.

2. In a device of the character described; having a screened air-chamber, and an aircylinder, passages leading from the airchambcr to the said air-cylinder, a water cylinder axially in alinement with the aircylinder, said cylinders connected by a common head, pistons in the air-cylinder and the water-cylinder, a hollow piston rod connecting the pistons and having a bearing in the common head, and a rod slidably held in the chamber of the hollow piston rod and extending outwardly through the piston of the water cylinder, said rod having a bearing in the outer head of the water cylinder and having a double cone shaped head extending beyond the outer surface of the said cylinder head, for connecting with the valve mechanism of the water-cylinder; the combination of a chamber in each of the said heads of the water cylinder around the opening for the piston rod and an absorbent packing ring disposed around the piston rod.

in each of said chambers, and a channel leading from each of said chambers to the water exhaust outlet whereby the moisture accumulated by the packing in said chamber is dispensed with, substantially as shown and described.

3. In a device of the character described, comprising an air-chamber, an air-cylinder communicating therewith, a water-cylinder in axial alinement with the air-cylinder, a piston in the air-cylinder and a piston in the water-cylinder, a hollow piston rod connecting said pistons, and a rod having a head seated in the hollow piston rod and extending through the piston of the air cylinder and extending through the head of the water cylinder, and a double cone-shaped head on its outer end; afeed valve with an extended rod for supplying water for actuating the pistons, and valves for the inlet and exhaust of the air from the air cylinder; the combination of a rocking lever pivotally secured to the head of the, casing of the device adjacent to the head of the water cylinder, said lever having one end pivotally secured to the extended rod of the feed valve of the water cylinder, and its opposite end having clamping jaws which yieldingly engage the head of the piston rod of the water cylinder, said head being a double cone in conformation and adapted to move the rocking lever to the limit of its stroke, then pass between the yielding jaws, and on the reverse stroke to similarly carry the arm of the rocking lever to the limit of its movement in the opposite direction, substantially as shown and described.

4. In a device of the character described, having a casing with opposing heads, an airchamber, an air-cylinder communicating therewith, and inlet and outlet valves for air; a water cylinder in axial alinement with the air cylinder, pistons within said cylinders and a hollow piston rod connecting the pistons, and a rod slidably held in a bearing in the piston of the water-cylinder and the chamber of the hollow piston rod and having its opposite end extending outwardly through the opposite head of the water cylinder, and having a double coneshaped head for connecting with the valve mechanism of the water cylinder, conduits for a motive fluid and a reversible feed valve for regulating the flow of the motive fluid, said feed-valve having an extended valve-rod extending beyond the casing; the combination of a rocking lever pivotally mounted upon a boss provided upon the head of the casing between the piston rod and the valve rod, one end of said lever being pivotally connected with the valve rod and the opposite end of said lever having spring actuated clamping jaws for yieldingly engaging the double conical head of the piston rod, whereby the feed valve is reciprocally moved simultaneously with the movement of the piston and in opposite relation thereto, substantially as shown and described.

5. In a hydraulic motor driven air exhauster and air compressor, having inlets and outlets for air and valves for controlling the air, the combination of an air-cylinder and a Water cylinder, adjacent to one another in axial alinement and having a wall between them serving as a common cylinderhead, a piston disposed in each of said cylinders, and connected by a hollow piston rod, said rod having a bearing in said common head, and a rod slidably held in the chamber of the hollow piston-rod and extending through the piston of the watercylinder and the opposite head 01 the water cylinder, and having a bearing in the said head of the water-cylinder, each of said bearings having a chamber between the walls of the head surrounding the openings for the rods disposed therethrough, and a packing ring of absorbent material in each of said chambers, and a vassage leading from the lower extremity oi each of said chambers, and communicating with the valve chamber of the hydraulic-valvc mechan 1, for automatically draining the bearing boxes of all excessive moisture, substantially as shown and described.

(3. In combination with a hydraulic device, having a water cylinder and a piston, and a piston-rod, a bearing in the head of the cylinder for the piston-rod, and inlets and outlets for water, and valve mechanism for controlling the flow of water for actuating the piston; the combination oi: a hearing in the head of the water-cylinder for the piston rod, said bearing having a chamber between its outer walls, surrounding the opening for the piston rod and a passage loading from the lowermost part of said chamber, downwardly to the chamber the valve mechanism for draining the said chambers of excessive moisture, and a packing of absorbent material in the said chamber, substantially as and for the purposes specified.

7. The combination of a horizontal aircylinder and means supplying air thereto, a. piston and piston-rod; and a water cylinder, a. piston and piston-rod, said watercylinder heads respectively having an annular recess containing packing and a downwardly directed exhaust channel; said first named piston rod journaled through said heads; of a feed-valve and its cylinder, the heads of said cylinder having downwardly directed exhaust outlets, said outlets communicating with the said exhaust channels of the water-cylinder, whereby waste fluid from the water cylinder may be carried oii, substantially as shown and described.

8. In a motor, the combination, with a cylinder and a reciprocating piston and piston-rod, the heads of said cylinder through which the piston-rod is journaled having each a recess and a channel leading from said recesses for exhausting leakage from said cylinder around said piston-rod, said recesses containing packing; of a feed-valve and its cylinder, said feed-valve cylinder having channels which communicate with the channels of the motor cylinder, substantially as shown and described.

9. A motor comprising a cylinder, cylinder heads, and a reciprocating piston and piston-rod, said piston-rod ournaled through said heads, said heads each having a recess, and absorbent material within said recesses and around said piston-rod, and a feedwalve and its cylinder, said feed-valve cylinder having exhaust channels which communicate with said recesses, whereby leakage around said piston-rod may be exhausted.

In estimony that I claim the foregoing as my invention, I have signed my name in presence of two witnesses, this 21st day of January, 1914:.

STANLEY M. STONE.

Witnesses HUGH ToLK-E, GENEVIEVE MACDONALD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

